Medium 6.3Published Jan 15, 2026

CVE-2025-9014Null Pointer Dereference Vulnerability on TL-WR841N

Updated under an hour ago (Oct 25, 2026, 10:23 PM ET)

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It affects TP-Link Systems Inc. TL-WR841N v14 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for TP-Link Systems Inc. TL-WR841N v14

Exploited in the last 30 days

A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation. A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.

CVSS: 6.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness (CWE): CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: TPLink
NVD analysis: Analyzed
Record last updated: Jan 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TP-Link Systems Inc. TL-WR841N v14 tp_link_systems:tl_wr841n_v14 (from the name)	before 250908	CNA record
tp-link tl-wr841n_firmware tp-link:tl-wr841n_firmware	before 250908	NVD

References

https://www.tp-link.com/us/support/faq/4894/vendor-advisory, patch
https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmwarepatch, product
https://www.tp-link.com/en/support/download/tl-wr841n/#Firmwarepatch, product
https://www.tp-link.com/us/support/download/tl-wr841n/#Firmwarepatch, product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.